The present invention provides a therapeutic agent or a prophylactic agent of dementia containing xanthine oxidase inhibitor such as a compound represented in formula (I), (II), (III) or (IV), or a pharmaceutically acceptable salt thereof as an active ingredient.
本发明提供了一种治疗剂或痴呆症预防剂,其活性成分中含有
黄嘌呤氧化酶
抑制剂,如式(I)、(II)、(III)或(IV)表示的化合物,或其药学上可接受的盐。